About 15 miles southwest of Hamilton, the Fernald Preserve is a former nuclear weapons production facility turned 1,050-acre nature preserve. The on-site museum, the Fernald Learning Center, tells the full story of uranium processing operations, the contamination that resulted, and the extraordinary remediation effort.
The trails through restored prairie and wetland habitat are open daily and free. The juxtaposition of environmental disaster and ecological recovery makes this one of the more thought-provoking outdoor spaces in Ohio. 7400 Willey Road, Harrison.